Selected monographs.

Date:: 1888

Catalogue details

Licence: Public Domain Mark

Credit: Selected monographs. Source: Wellcome Collection.

333/440 (page 315)

appeared the pain went aAvay and the urine became profuse and turbid. The similar observations of Hare and Wilse have been already mentioned above. In the discussion which folloAved the relation of a case of intermittent hydronephrosis caused by cancer of the bladder, by Morris (153), altogether three or four cases of intermittent hydronephrosis were mentioned by Hare and Smyth, of which I believe, as I also do of those mentioned before, that they were caused by the same mechanism as the hydi-onephroses observed by Eger and me. (4) Confirmation hy experiment. If the moveable kidney, pelvis, and ureter are represented by an india-rubber elastic ball loosely fastened on a firm board, with a thin afferent and efferent tube (154), intermittent hydronephrosis is easily reproduced under exactly the same conditions as in the living subject. (1) If the bag filled with Avater is lifted up vertically and bent so that the efferent tube occupies the highest point, evacuation will not take place until the pressure of the water overcomes the elasticity of the india-rubber bag. Analogue : Moveable kidney with the ureter inserted into the highest point of the pelvis. (2) If the bag is laid horizontally, evacuation will spon- taneously take place if the efferent tube is intact. (3) If the bag is filled in a horizontal position and placed so that the efferent tube forms an angle Avith the bag, and the tube is then twisted; as the pressure of water increases in this position, the bag will become more and more elevated and distended, and no evacuation will take jDlace until the board on which it lies is considerably tilted to the side, which will cause the bag to turn on its side and thus untwist the efferent duct. (4) If on the contrary the board is made vertical, the bag if moderately filled in this position will bend towards the efferent duct and form a kink in it. It will depend on the size of the angle and the doAvnward resistance occasioned